Earth-0.1.1

1. Modify the calculation method of property amount for RPCs.
2. Set the height to start total amount check, that the total amount is not allowed to be greater than INT64_MAX, for establishment of crowdfunding.
3. Fix the bug that the remaining tokens not sent to the issuer after the crowdfunding close.
4. Add some of the crowdfunding to the Integration testing.
5. Fix confirmations informations in RPC whc_decodetransaction.
6. Append the amount field to the return of RPC whc_gettransaction, identify how many WHCs user input to participate the crowdfunding, for unconfirmed crowdfunding participate transaction.